How should the brand set up a test to understand how frequency affects incremental conversions?

A brand needs to measure how frequency affects conversions and ROI. Currently the brand runs a campaign on 2x frequency for seven days.

How should the brand set up a test to understand how frequency affects incremental conversions?
A . A Conversion Lift test with a 2x frequency for seven days
B . A multi-cell Conversion Lift test: Cell 1 with a 2x frequency for seven days, Cell 2 with 4x frequency for seven days
C . A multi-cell A/B test: Cell 1 with a 2x frequency for seven days, Cell 2 with 4x frequency for seven days
D . A Conversion Lift with 4x frequency for seven days

View Answer

Answer: C